baber/WOPTO huggingface dataset:
Patent GB-1048395-A (GB)
Title: Photographic apparatus
IPC: G03B17/50
Filed: 1963-06-24
Abstract: 1,048,395. Photocopying apparatus. INTERNATIONAL POLAROID CORPORATION. June 24, 1963 [July 3, 1962], No. 25044/63. Heading G2A. The light source in a photographic recording apparatus produces light in the form of a succession of pulses, the pulse rate being proportional to the speed of movement of the photosensitive sheet through the exposure station. The relationship is such that each incremental area of the sheet is exposed to the same number of light pulses (at least 1. 5 and preferably two or more). Figs. (not shown) 18-20 are circuits for producing pulsed light from different kinds of light sources, the switch 282 being connected to a commutator operated by the movement of the photosensitive sheet. The invention is described as applied to the photocopying apparatus of Specification 969, 188 and has the same description and drawings.
Patent GB-691469-A (GB)
Title: Improvements in ball-pointed writing instruments
Inventor: FEHLING HANS REINHARD
IPC: B43K1/08
Filed: 1949-09-29
Abstract: 691,469. Making pens; casting composite articles. COMPANIA URUGUAYA DE FOMENTO INDUSTRIAL SOC. ANON. Oct. 27, 1950 [Sept. 29, 1949], No. 25069/49. Classes 83 (i) and 83 (ii). [Also in Group XV] The writing extremity 1 of a ball-point pen is formed with an open-mouthed socket to receive a bearing member 2 in which the ball is housed. The member 2 is formed by pressing and punching operations to provide a base seat 5, ink-feed holes 3, and a lateral seat 6 which is spun over at the upper end to retain the ball. The member 2 could be of wearresisting metal, or built up in layers comprising a white metal or plastic lining on a sheet of beryllium-bronze or stainless steel. The member 2 can either be inserted complete with the ball, or the ball could be inserted later and the seat 6 then spun over; or the extremity 1, formed integrally with an ink reservoir, may be made of plastic material by injectionmoulding, with the member 2 in situ. Specifications 571,698, 573,747 and 629,226, [all in Group XV], are referred to.
Patent GB-1392106-A (GB)
Title: Modulator circuits
IPC: H03C1/54
Filed: 1972-05-26
Abstract: 1392106 Switching circuits; pulse modulation circuits TELEFONAKTIEBOLAGET L M ERICSSON 26 May 1972 [27 May 1971] 25096/72 Headings H4L and H3T A modulator circuit suitable for use in a carrier telephony equipment comprises a dual gate FET, an information signal input coupled with at least one of the drain, source electrodes of the FET, a carrier frequency signal input coupled with at least one of the gate electrodes, an output coupled with at least one of the drain, source electrodes for deriving a modulated signal and a voltage divider Z 1 , Z 2  connected with the source drain path and having a point in the divider connected to the other gate electrode for increasing the linearity of the transistor. In operation, an input pulse carrier Vs applied to the gate G 1  serves as a gating signal for a sinusoidal information signal Vm so that the output contains substantially only the first order side-bands and a reduced carrier. The embodiment of Fig. 6 (not shown), involves an FET connected as a series modulator while the embodiment of, Fig. 7 (not shown), involves a balanced modulator for push-pull operation.
Patent GB-593952-A (GB)
Title: Improvements in or relating to wooden barrel staves
IPC: B27H3/02
Filed: 1945-09-27
Abstract: 593,952. Staves for barrels. ROBINS, C. H. Sept. 27, 1945, No. 25130. Drawings to Specification. [Class 21] A laminated wood barrel stave is characterised in that the grain of the outermost and innermost layers extends longitudinally of the stave and parallel to the longitudinal medial line thereof, and the grain of intermediate layers or of groups of intermediate layers extends obliquely, preferably at an angle between 10 degrees and 80 degrees, to the longitudinal medial line of the stave so that the grains of adjoining individual layers of or adjoining groups thereof cross diagonally. A layer having longitudinallyextending grain may be interposed between two obliquely-grained layers. Some of the intermediate layers may consist of fibrous or cellular material other than wood, e.g., coarse fabric, glass wool.
Patent GB-1503106-A (GB)
Title: Cooled rotor
IPC: F02B55/04
Filed: 1976-06-17
Abstract: 1503106 Rotary positive-displacement fluid machines CATERPILLAR TRACTOR CO 17 June 1976 [28 Oct 1975] 25216/76 Heading F1F A rotor 13 mounted via a bearing 12 on a shaft 11 has one or more axially extending cooling passages 20 adjacent each rotor apex, supplied with coolant via a passage 25, 26 in the shaft and one or more ducts 24 in one end-wall 14 of the rotor. Coolant may be discharged via further ducts 31 in the other end-wall 15, or via the rotor cavity (239) Fig. 3 (not shown). Passage 27 supplies coolant/ lubricant to the bearing 12. The flanks of the rotor may be lined with insulating material.
Patent GB-698445-A (GB)
Title: A new and improved closure cap for the filler necks of automobile petrol tanks
IPC: B60K15/04
Filed: 1951-10-29
Abstract: 698,445. Closure caps. SACH, C. E. Oct. 29, 1951 [Nov. 1, 1950]. No. 25261/51. Class 125(iii) A lockable closure cap for vehicle petrol tanks has a cap 11 with a diametrically aligned embossment 12 housing the lock 13, a plate 14 with a flange 15 fitting tightly within cover 11 and having a slot 16 engaged by a ledge on the base of the lock to prevent relative rotation. Diametrically opposite the slot 16 is an opening 17 and two lugs have holes to accommodate a pivot pin 19 of a latching lever 21 having lugs through holes in which the pin 19 passes and a platform 23 to bear against the operating pin 24 of the lock 13. The opposite end of lever 21 has a finger 25 fitting through opening 17 and has a compression spring 27 between a dimple 26 and the plate 14. A spinner member 28 has a flat ring 29 fitting rotatably within the flange 15 and having an integral cylindrical part 30 with inwardly directed pins 32. The member 28 is retained against plate 14 by a circular member 34 held in place by an inturned edge of the skirting of cap 11. A sealing member 36 which fits within member 28 but will not slide past pins 32 is recessed to provide a seating for a rod 39 slidable through a hole 20 in the plate 14. When pin 24 engages the platform 23 to depress lever 21 the latch is released and the cap 11 spins but when the lock is released the parts are latched together and may be removed from the tank or replaced. Specification 669,406 is referred to.
Patent GB-1284825-A (GB)
Title: Tensioning device
IPC: B60P7/08
Filed: 1970-05-26
Abstract: 1284825 Releasable fastenings AEROQUIP AG 26 May 1970 [30 June 1969] 25331/70 Heading E2A [Also in Division F2] A chain or cable tensioner comprises a spring-loaded telescopic portion 25 carrying a chain-link retaining jaw 12 and adjustable by means of a thread and nut, 38, 41 the jaw being rapidly unlatchable to release the chainlink from a safe distance by means of a lanyard 65 stored on a reel 64. The end link 13 of the chain &c is held by a member 17 pivoted to the jaw 12 and this is pivoted on a link 18 pivoted on the jaw frame 22. As shown, the spring loading is in the form of a soft helical spring 31 and hard disc, spring 27 and the adjusting nut 38 is indexed by detent 44, and the rod 33 is marked with coloured bands (51, Figs. 6 and 7, not shown) to indicate the degree of tension employed. A latch-pawl 55 is retained by a spring loaded latch-block 61 but is displaced by a collar 68 on the lanyard to release the pawl, to release the link 18 on which the retaining jaw 12 is pivoted, Fig. 5. A piston 32 acts as a damper.
Patent GB-639114-A (GB)
Title: Improvements in or relating to screw jacks or lifting devices
IPC: E04B1/36
Filed: 1944-12-18
Abstract: 639,114. Anchor nuts; locking-nuts. BLACKWOOD, A. R., and RAWLPLUG CO., Ltd. Dec. 18, 1944, No. 25342. [Class 89 (i)] [Also in Group X] A device for adjusting the level of a floor joist 8 or other structural element of a building comprises a nut 3 engaging a screw bolt 4 in a hole 7 in the joist, the bolt resting by its head 5 on a concrete or like floor. The nut is received in an enlargement of the hole 7 and is formed with ribs 9 which prevent it rotating. The joist is adjusted by rotating the bolt 4 by means of a screw-driver inserted in the hole 7 to engage a slot 6 in the bolt. In place of this slot the bolt may be formed with a hexagonal recess to receive the hexagonal end of a tool. The nut is formed with a slot 10 whereby when the joist has been suitably adjusted, the part of the nut above the slot may be bent as in Fig. 3b by striking the free end of the bolt with a tool so as to lock the nut on the bolt. Alternatively, the nut is formed with a finger 11, Fig. 4, which may be bent inwardly by striking the bolt as above.
Patent GB-708961-A (GB)
Title: Method of making concrete roads and apparatus therefor
Inventor: HAUSER JOHANN
IPC: E01C19/40
Filed: 1951-10-30
Abstract: 708,961. Making concrete roads. FIRMA ALLGEMEINE BAUMASCHINEN GES. Oct. 30, 1951, No. 25404/51. Class 107 Concrete is consolidated by a vibrating plank which is suspended in a carriage and intermittently contacts the concrete surface. The carriage advances over the work and preferably the plank is given a back and forward motion such that the plank is practically stationary when consolidating the concrete. The plank 1 is vibrated by a high-frequency vibrator 2 and is suspended by links 5, 6 with the interposition of resilient buffers 3, 4. The intermittent application of the plank is effected by an eccentric 8. If desired a rotatable member 14 may be used to give a preliminary smoothing action.
Patent GB-443441-A (GB)
Title: Improvements in and relating to siphon heads for aerated mineral water bottles and like containers
IPC: B67D1/04
Filed: 1934-09-04
Abstract: 443,441. Siphon bottles. EUGSTER, E. J. P., Barnsbury Works, Barnsbury Street, London. Sept. 4, 1934, No. 25421. [Class 14 (i)] In a cast o moulded siphon head in which the valve 7 is held closed by a spring 10 and by the in ternal gas pres sure, and is open ed by a lever 14 engaging a pin 13 in a cylindrical head member 11 at the upper en( of the valve stem 8, the cap 17 which closes the upper end of the siphon head is formed with a tubular extension 18 adapted to engage the member 11 slidably and guide it in its movements, thus ensuring accurate reseating of the valve 7. The extension 18 is externally threaded to screw into the siphon head. In a modification, the cap 17 has a plain extension 18, and also an internally threaded flange to screw on to the head. Reference has been directed by the Comptroller to Specification 424,579.
Patent GB-615103-A (GB)
Title: Improvements relating to friction lighters
IPC: F23Q2/08
Filed: 1946-08-26
Abstract: 615,103. Frictional lighters. LOWENTHAL, B. Aug. 26, 1946, No. 25501. [Class 75 (iii)] Two operating wheels 19, 20 are coaxially mounted on brackets 17 on a plug 13 on the top of a frictional lighter so that they can be rotated simultaneously by a finger or thumb, one wheel 19 rotating the flint wheel 22, the other wheel 20 opening the cover 27. The flint wheel 22 is mounted on an extended hub of the wheel 19, and the cover 27, having a recess which covers the wick 14, is mounted on an extended hub of the wheel 20, notches 28 thereon fitting into corresponding recesses in a hole 29 of the cover 27. A screw 21, extending through the hub of the wheel 20, engages a screw threaded bore in the hub of the wheel 19. A spring pressed plunger, housed in the plug 13, retains the cover 27 in either its closed or its open position.
Patent GB-1341893-A (GB)
Title: Light valves with high frequency excitation
IPC: G02F1/17
Filed: 1971-04-19
Abstract: 1341893 Modulating light RESEARCH FRONTIERS Inc 19 April 1971 [1 April 1970] 25535/71 Heading H4F A light valve comprises a cell containing a fluid suspension of particles, area electrodes (i.e. having two dimensions large relative to their thickness) being disposed on either side of the suspension, and means for applying an A.C. voltage to the electrodes to produce across the suspension a field not greater than 24V/mil. and having a frequency at least as high as substantially 325 KHz, whereby agglommeration of the suspension is avoided. As particularly described, the suspension is of herapathite particles but other materials are referred to. The fluid may be isopentyl acetate, with nitrocellulose as a protective colloid and dibutyl phthalate to increase viscosity. One wall of the cell may be reflective rather than transparent.
Patent GB-690295-A (GB)
Title: A hand cleansing and the like pasty or creamy product
IPC: A61Q19/10
Filed: 1950-10-20
Abstract: A creamy product for cleansing the hands &c. without using water comprises a mixture of tallow, caustic soda, oil, preferably of a vegetable origin, and turpentine, together with a large proportion of water.  A preferred composition with proportions by weight contains tallow, 6 per cent; caustic soda, 4 per cent; oil, 4.5 per cent; turpentine, 0.5 per cent; and water, 85 per cent.  The water content is reduced by evaporation until the mixture assumes a pasty consistency.  The compositions may also include perfumes.
Patent GB-642510-A (GB)
Title: Improvements relating to bed-side and like tables
IPC: B61D37/00
Filed: 1948-10-01
Abstract: 642,510. Brackets. COLLYER, S. R. Oct. 1, 1948, No. 25593. [Class 52 (v)] A bracket arm d can be turned from a vertical to a horizontal position on a pivot c on its fixing plate a and a table f hinged at one end to the arm can then be lowered to the horizontal position in which it is supported by a folding strut h engaging a slot i in the arm d.
Patent GB-1307549-A (GB)
Title: Cut and deflect web drive apparatus
IPC: B65H26/00
Filed: 1970-05-28
Abstract: 1307549 Web cutting apparatus XEROX  CORP 28 May 1970 [2 June 1969] 25628/70 Heading B4B A cutting apparatus comprises means for cutting a web into a succession of sheets and means for deflecting the cut sheets along one of two alternative paths. As described the cutting apparatus is used to cut the web material leaving a data printing machine. The web material is fed into the apparatus by a pair of drive rolls 10, 12 and via a guide plate 50 to a brake means 16. The brake means includes a brake pad 168 which is urged against a back stop 51 to halt the web when a solenoid 160 is energized. Whilst the web is halted the rolls 10, 12 continue to feed the web and so a loop 14 is formed therein. When the brake pad is released and lifted by a return spring 164 rolls 18, 20 feed the web to a cutting means 22. The peripheral speed of rolls 18, 20 is greater than that of rolls 10, 12 so that the loop 14 is removed during this feed. Whilst the web is braked the rolls 18, 20 slip thereon and a knife blade 231 is advanced by energization of a solenoid 220 to coact with a stationary edge 58 to cut the stationary web. The blade 231 is of inverted V-shape and is urged by a spring 230 against the edge 58.  A deflector.gate 24 is located beyond the cutting means and is movable between two positions. In one position, shown in full lines, it guides printed documents cut from the web to exit rolls 26, 28 which feed them to, e.g. a binder, stacker or stapler. In the other position, shown in dashed lines the gate 24 directs scrap paper via a web 64 to a scrap disposal area. The operation of the brake means, cutting means, and deflecting means is controlled by an electronic control means which monitors -the operation of the data printer and/or the material fed to the apparatus, e.g. by means of a counter. The control means ensures that the printed documents are cut to a uniform length and that the scrap paper is cut into lengths lying within a certain range.
Patent GB-986194-A (GB)
Title: Process for the production of refractory material
IPC: C10C1/19
Filed: 1961-07-14
Abstract: A refractory material is made by heat-treating a bituminous distillation product of coal, petroleum or wood, having a boiling-point in the range 150 DEG  to 400 DEG  C. (preferably a coal tar oil) at a temperature between 150 DEG  and 500 DEG  C. and at a pressure of at least two atmospheres absolute, and admixing the so-treated product with a refractory ceramic material. The heat-treated product, prior to the admixing step, may be mixed with dehydrated tar or coal tar oils, or may be distilled, e.g. under vacuum with steam, to produce pitch which may be blended with oils. Polymerizing substances or gases may be added to the distillation product before, during or after the heat treatment to increase the carbon yield when the mixed product and ceramic is baked, e.g. as described in Specification 676,290.
Patent GB-349859-A (GB)
Title: Improvements in or relating to electric discharge tubes, discharge lamps, or the like
IPC: H05B41/04
Filed: 1930-08-28
Abstract: 349,859. Discharge apparatus. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent-Treuhand-Ges. f³r Elektrische Gluhlampen ; 11, Ehrenbergstrasse, Berlin.) Aug. 28, 1930, No. 25698. Convention date, Aug. 29, 1929. [Class 39 (i).] A device for ensuring starting of luminous electric discharge lamps, tubes and the like by means of high frequency current comprises a source of high - frequency current 14, a choke coil 18 for preventing leakage of high frequency current into the main supply circuit 4 . . 7, this choke being substantially non-capacitative and underdimensioned for the load it has to carry, and switching means 8, 10, 11 for connecting the choke in circuit only during starting. The choke coil 18 is connected in circuit on the depression of the switch 9, 10, 11 and is short-circuited by the contacts 9, 11, 8 during normal operation of the lamp. The high-frequency apparatus 14 which comprises an inductive interrupter, an oscillatory circuit and a step-up transformer is set into operation on the switch 9, 11 being depressed so as to connect it across the supply terminals 6, 7 and high-frequency voltage is applied across the electrodes 2, 3 of the lamp 1. At the same time the coil 18 prevents leakage of high-frequency current into the main supply. When the tube has struck the switch 9, 11 is released and normal operation takes place, the supply terminals being connected to the electrodes 2, 3 through the switch 9, 11 and a resistance 16 respectively. The device may also be used for the starting of tungsten arc lamps.
Patent GB-945412-A (GB)
Title: Improvements in or relating to protective headgear
Inventor: CHRISTIE-MILLER JOHN AYLMER
IPC: A42B3/06
Filed: 1961-07-15
Abstract: 945,412. Protective headgear. CHRISTY & CO. Ltd. July 13, 1962 [July 15, 1961; Aug. 16, 1961], Nos. 25728/61 and 29498/61. Heading A3V. Protective headgear comprises outer and inner shells A and D of light metal or tough plastic material, such as a polyester and/or polyacrylic resin reinforced with glass fibres, and a continuous or discontinuous layer B of honeycomb material, preferably non-resilient, located between the shells and fixed to one of them, so that the axes of the cells of the honeycomb material are substantially normal to the adjacent parts of the latter. The shells may be arranged so that a small relative movement, restricted as by a flange E on one or the other, can occur between them. This flange may be perforated. Small ventilating holes H and I may be formed respectively, in the outer and inner shells. The honeycomb material may be made from aluminium or other light metal foil and the cells may be hexagonal. The layer B may comprise bands or trapezoidal pads of honeycomb material separated by gaps C and F. Head harness, e.g. a chin strap, may be anchored to the inner shell or, alternatively, one or more pads G of wool, felt or spongy material, such as foamed or expanded polyurethane, polystryrene or butadiene rubber, may be bonded to the inner surface of the inner shell. Groups of hearing slots may be formed in the earcovering portions of the shells and an ear pad, in the form of a ring L of spongy material, may be provided, on the inner surface of the inner shell, around each group of slots. The headgear may have a flexible peak or projecting rim.
Patent GB-616119-A (GB)
Title: Improvements in or relating to overload release clutches
IPC: F16H35/10
Filed: 1946-08-28
Abstract: 616,119. Overload release clutches. MANUFACTURE DE MACHINES DU HAUT-RHIN. Aug. 28, 1946, No. 25759. Convention date, Nov. 22, 1941. [Class 80 (ii)] An overload release clutch between a driving shaft 1 and a concentrically mounted hollow shaft 2 carrying a worm 3, comprises a member 7 slidably keyed to the driving shaft and having facial teeth 6 engaging similar teeth 5 on the shaft 2 under the action of a spring 8 bearing against a nut 9 secured to the shaft 1. On overload, the member 7 is forced axially along shaft 1 compressing the spring 8 until the hooked end of a pawl 11 mounted at 12 on the nut 9 engages the member 7 under the action of a spring 13, thereby permanently disengaging the clutch until pawl 11 is released. The device is particularly applicable to automatic lathes.
Patent GB-172137-A (GB)
Title: Improvements relating to the building of vehicle bodies
IPC: B62D29/02
Filed: 1920-09-07
Abstract: 172,137. Carrow Cars Ltd., Maryon, H., and Wood, L. Sept. 7, 1920. Doors for passenger vehicles.-Vehicle bodies are built by forming first a moulding element comprising ji.g members or panels with an exterior surface of slats shaped to the desired contour, then laying thereon and attaching to the body framing one or more layers of strips of thin wood or the like and, if required, a layer of waterproof fabric &c., and finally removing the mould from the interior of the body structure. The mould for a motor-car body comprises two longitudinal members a, Fig. 3, to which are detachably secured vertical posts b carrying shaped horizontal slats c. Removable bars d interconnect the posts b. Grooves such as g, g<1> accommodate body frame-members such as h, h<1> so that they lie flush with the surface of the mould. In a modification. as applied to a vehicle door, moulding panels comprising frame members l, m, Fig. 7, and slats n fit into the open spaces in the body frame k<1>, k<2>.
Patent GB-499346-A (GB)
Title: Improvements in or relating to combined washing and wringing machines
IPC: D06F45/00
Filed: 1937-09-23
Abstract: 499,346. Wringers. SLACK, M. H. Sept. 23, 1937, No. 25806. [Class 138 (ii)] A table cover A is slidably and pivotally mounted on a bar B carried by a washing- machine C at right-angles to the axes of the rollers of a folding wringer D also carried by the washing-machine. When the wringer is folded down to its inoperative position, the table cover may be swung down to a horizontal position so as to cover the wringer, but when the latter is in its operative position, the table cover may be slid along the bar and then folded down as shown to serve as a work-board for the wringer. The other end of the cover is supported by legs resting on top of the washing- machine and clips E for carrying clothes tongs may be provided on the underside of the cover.
Patent GB-278378-A (GB)
Title: An improved process and apparatus for the manufacture from bituminous shales of a product adapted for dry distillation
IPC: C10B1/10
Filed: 1927-09-30
Abstract: 278,378. Patentaktiebolaget Gr÷ndal- Ramen. Oct. 2, 1926, [Convention date]. Rolling-machines.-In order to form balls or nodules bituminous shales crushed into grains of maximum size about 10 mm. and water amounting to about 23 per cent are fed into a rotating drum A, having a rough inner surface formed for example of perforated plates, by a conveyer B adapted to deliver the shales at different distances from the feeding end according to the size of agglomerate required. The other end of the drum may have a screen or is connected to a drum C provided with a screen and leading to a drying drum E. Pieces of insufficient size are separated in the drum C and returned to the inlet drum D, the other pieces, which should not be larger than a hen's egg, passing to the drying drum.